boynton



(No Model.) 3 Sheets-Sheet 1.

E. M. BOYNTON.

LOGOMOTIVE.

No. 359,008. Patented Mar. 8, 1887.

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UNITED STATES PA NT OFFICE. g

EBEN MOODY BOYNTON, OF \VEST NEWVBURY, MASS, ASSIGNOR TO THE BOYNTONBICYCLE RAILVAY COMPANY, OF NE\V YORK, N. Y.

LOCOMOTIVE.

SPECIFICATION forming part of Letters Patent No. 359.008, dated March 8,1887.

Application filed August 16,1886. Serial No. 2l0,998. (No model.)

To all w/tom it may concern:

Be it known that I, -EBEN MOODY BoYN'roN, a citizen of the UnitedStates, residing at West Newbury, in the county of Essex and State of 5Massachusetts, have invented certain new and useful Improvements inLocomotives, of which the following is a specification.

My invention relates to improvements in locomotives adapted to beemployed in conjunction with the Boynton bicycle railway system, forwhich Letters Patent of the United States were granted to me, andnumbered 230,999 and 232,109. According to this system the carriages andother rolling-stock are supported upon central wheels running upon asingle track of ordinary or other suitable construction, and they areretained in a vertical position by means of another wheel or wheelsarranged above the said carriages and rolling stock, in position toengage with a rail or guide supported above the path of the train. Incarrying out my invention I construct a main bed or platform, which iscomposed of two parallelgirders connected together at intervals bycross-pieces. Upon this platform I support the boiler, cab, coal andwater supply, and a framing for the support of the guidewheels forinsuring the proper vertical position ofthe engine. The engine issupported on a single central driving-wheel of large diameter, and by atruck pivoted at its front end and provided with one central wheel or apair of central wheels trailing one after the other on the same rail.The main bed is, by prefer- 5 ence, extended considerably beyond thefront end of the smoke-box, and is provided with steps or stairwaysarranged on either side of the sun okestack. The cowcatcher is arrangedin front ofthe main bed in a manner similar to 0 that commonly adopted,but by preference is extended upward, so as to divide the resistingcurrent of air. The engine is fitted with a boiler, fire-box, cylinders,and other necessary working parts of any ordinary or suitable con- 5struction. The driving-wheel is arranged at the rear of the cab, and issupported in bear ings carried by a framing which supports the rearguiding-wheel. Acoal-box is arranged in the rear of the driving-wheel,which is provided with inclined supply-tubes, arranged on either side ofthe driving-wheel, adapted to automatically lead the coal to a platformin the rear of the furnace-door. At the rear of the coal-box I arrangeatank, from which water is supplied to the boiler by a pump or othersuitable supply device connected with the tank and with the boiler inthe ordinary or other suitable manner. A frame is arranged at theforward end of the engine, which is, by preference, connected by ties tothe rear frame, and is adapted to support a guiding-wheel so arranged asto engage with the superimposed guiding-rail. The guiding-wheels aresupported in bearings carried by the framing, and the forward wheel andparts connected there- 6 with are protected from the destructiveproducts of combustion and other substances ejected from the smoke-stackby means of an inverted funnel-shaped guard.

The accompanying drawings form part of this specification and illustratewhat I consider the best means of carrying out my invention.

Referring to .the drawings, Figure 1 is a side view of my improvedlocomotive. Fig. 2 is a sectional plan of the same. Fig. 3 is aperspective view of the main frame and boiler with the working partsremoved. Fig. 4 is a sectional view of a series of rails arranged for aground structure. Fig. 5 represents a similar view for an elevatedstructure. Fig. 6 is a perspective view of one of the guide-wheels withantifriclion wheels applied to its bearings. Fig. 7 is a sectional viewof the structure,showing the engine on one side and a skeleton wheel onthe other. Fig. 8 isadetail section of the engine. Figs. 9 and 10 aredetail views of one arrangement of the structure.

In each of the views similarletters of reference are employed toindicate corresponding parts wherever they occur.

A represents the main bed or sill-girder, which in the arrangement shownis composed of two guides, to a, connected together at in tervals bymeans of cross-pieces a a. 95

Upon the sill-girder A, Isupport the boiler B and its connected andsupported parts, the cab G, the framing D, the coal-box E, and itssupply-tubes e, and also the water-tank F.

The engine at its rear is supported on a single central driving-wheel,G, of adiameter, by preference, of a measurement slightly in excess ofthe height of the top of the cab G from the upper surfaceofthesupporting-rail A. At its forward end the frame A is supported by atruck, J, pivoted at j to the said frame, and provided with a pair ofwheels,jj, supported in pivotal bearings j j carried in brackets f,affixed to the under side of the truck J. The pivotal bearingsfj areheld in position by springsjj. The wheels jj are arranged to trail oneafter the other on the same rail.

The main girder-frame A in the arrangement shown is extendedconsiderably beyond the front end of the smoke-box and is provided withsteps or stairs K, leading from the foot of the sill-girder A to waysover the boiler B, which are protected by railings L. At the rear end ofthe girder-sill A, and beneath the coal-box E, I arrange a water-tank,F, which is provided with a supply-pipe,f, connected with a pump orinjector and a delivery-pipe connected with the boiler B.

The frame D is, by preference, formed of angle-iron crossbraced, asshown, and supporting at its upper end a longitudinal tie, D, which atits forward end is connected to the upper part of a framing, D", whichis carried by the boiler B.

Above the framing D, and connected thereto by spring-connections m m, Iarrange a bearing-piece, M, in the center of which is pivoted aguide-wheel, m, adapted to engage with a guiding-rail, A, supported byposts A (indicated in Fig. 2,) or by a framing, such as shown by Figs. 4and 5.

The boiler B is held to the platform A by means of brackets 12 b, and isfitted with the necessary tubes and valves, and is connected with a pairof cylinders, N N, which are provided with pistons operatingpiston--rods a n, which, by means of crank-rods n n, are connected toand operate cranks g 9, arranged on the opposite ends of the shaft g ofthe drivingwheel G.

The framing D supported above the boiler, is provided with a guide wheelor wheels, (1, adapted to engage with, the upper rail, H. Theguide-wheel (2- as shown by the drawings, is supported in bearings (1,carried by the front upright of the framing D by means of a shaft, d",which is held in position by aspring, (1

Beneath the shaft (1 and the parts immediately connected therewith Iarrange an in- -verted funnel-shaped guard, O, which I prefer to beconnected to and supported by the forward face of the framing D Theframings D and D I prefer to be constructed as shown in the drawings,but the arrangement may be varied. I can employ various forms ofstructures to' support the guide-wheels.

In some cases I employ friction-rollers p p on the exterior of thebearings of the guidewheels, as shown by Fig. 6. The anti-frictionwheels in the arrangement shown are adapted to bear against boards orplates supported vertically on each side of the rail A and the pendantfrom the support of rail A.

In Fig. 4 I have shown a structure adapted to support and conduct twolines of tracks on a ground-level, while at Fig. 5 I have shown anelevated structure by which two lines of tracks are supported at anygiven elevation.

Having thus described my invention,what I claim, and desire to secure byLetters Patent, 1s-

l. A locomotive having a central drivingwheel and central or leadingwheel or wheels adapted to support and operate the said locomotive and aguide or retaining wheel or wheels arranged and supported above thelocomotive, substantially as shown and de scribed.

2. The combination,with a locomotive hav ing a central drivingwheel anda central leading wheel or wheels adapted to support and operate thesaid locomotive, and a guide or retaining wheel or wheels arranged andsupported above the locomotive, of a coal-box having supply-tubesarranged on either side of the driving wheel or wheels, substantially asshown and described.

3. Alocomotive having a single central driving-wheel supported on asingle bearing-rail and having a central guiding wheel or wheelsengaging with a superimposed rail or rails, substantially as described.

4:. The combination,with a locomotive having a single centraldriving-wheel and a central leading-wheel or leading-wheels, of one ormore guide-wheels arranged above the said locomotive in position toengage with a rail or guide supported above the trainway, substantiallyas set forth.

5. A locomotive frame composed of a bed, A, and a superimposed frame orframes for the support of guide-wheels, substantially as and for thepurpose stated.

6. The combination,with a locomotive having a single drivingwhcel, of acoal-supply having inclined feeders arranged on opposite sides of thedriving-wheel, substantially as shown and described.

In witness whereof I have hereunto set my hand.

EBEN MOODY BOYNTON.

lVitnesses:

XV. COLBORNE BROOKES, CHARLES J. TULLY.

